GB2335641A

GB2335641A - A device for delivering wound bobbins from a textile machine

Info

Publication number: GB2335641A
Application number: GB9906249A
Authority: GB
Inventors: Zdenek Spindler; Jiro Slingr
Original assignee: Rieter Elitex AS
Current assignee: Rieter Elitex AS
Priority date: 1998-03-27
Filing date: 1999-03-19
Publication date: 1999-09-29
Also published as: GB9906249D0; CZ93198A3; CZ285784B6; DE19912630A1

Abstract

A device for delivering wound bobbins (3) from a textile machine comprises a main conveyer of wound bobbins (3) to whose end there is related a horizontal auxiliary conveyer (1) arranged at a constant height and comprising a conveyer belt (10) coupled with means for repeated formation of a row of wound bobbins (3) and with a device 2 for transferring the created row of wound bobbins (3) away from the conveyer belt (10) of the auxiliary conveyer (1). Along both edges (12) of the auxiliary conveyer (10) there are on the auxiliary conveyer (1) fixed deposit plates (4) inclined in relation to their position on the auxiliary conveyer (1) downwards and fitted at their extremities with gripping means (40). The transfer device 2 may comprise transfer arms 20 and a transfer horizontal bar 21 adapted to move in a reciprocating swinging motion to engage the row of bobbins 3. Alternatively the transfer device 2 may be a device having a rectilinear reciprocating travel path for engaging the row of bobbins 3. Movement of the transfer bar 21 to one side of the conveyor 1 to engage the row of bobbins, moves the whole row to one side and pushes the row over the raised side edge 12 until the whole row falls over the raised edge and rolls down the deposit plate 4 where it is braked by the retaining means 40.

Description

1 A device for delivering wound bobbins from a textile machine

Technical Field

The invention relates to a device for delivering wound bobbins from a textile machine comprising a main conveyer of wound bobbins to whose end there is related an auxiliary conveyer of wound bobbins arranged at a constant height and comprising a conveyer belt coupled with means for repeated formation of a row of wound bobbins and with means for transferring the created row of wound bobbins away from the conveyer belt of the auxiliary conveyer.

2335641 Background Art

US 5,168,696 describes a device comprising an auxiliary conveyer of wound bobbins related to the end of a main conveyer of a machine. The auxiliary conveyer serves to receive wound bobbins from the main conveyer deposited on it subsequently in rows. Arranged in parallel with the auxiliary conveyer is an intermediate deposit device for a plurality of rows of wound bobbins made as an elevator containing a plurality of receiving units for receiving a row of wound bobbins from the auxiliary conveyer. The motion of the elevator transports its receiving units to a delivery conveyer which is as well arranged in parallel with the intermediate deposit device. Situated between the delivery conveyer and the receiving units of the elevator is a device for taking wound bobbins out of the row of wound bobbins on the receiving device and for transporting them to the delivery conveyer intended to convey them for further processing such as dyeing etc. The transport of the rows of wound bobbins to the receiving units of the elevator is provided for by a tilting movement of the auxiliary conveyer.

This device is complicated, imposes heavy demands both on its production and adjustment, and can be used only in fully automated plants where the installed production units are interconnected and the bobbins produced on one machine are led to be processed on another machine. Its 2 application in non-automated plants where it is sufficient to put wound bobbins from a machine into pallets or similar storing means would be too expensive.

The wound bobbin depositing in pallets is necessary if the wound bobbins are to be transported at considerable distances but superfluous in plants where wound bobbins are processed in a same, but non-automated shop. Here, it is a rather complicated additional operation consisting in putting wound bobbins into pallets and taking them out subsequently.

To eliminate the drawbacks of the above devices there has been proposed a device for delivering wound bobbins from a textile machine described in the patent specification CZ 2693-95. It contains an auxiliary conveyer located in relation to a main conveyer of a spinning machine, with storeylike bobbin row containers situated at each side of the auxiliary conveyer. Also related to the auxiliary conveyer is a device for taking the wound bobbin rows from the auxiliary conveyer to the one or the other side in the direction perpendicular to the motion direction of the auxiliary conveyer and for placing them into the storey-like row container.

While considerably reducing the excessive complexity of the above cited solutions, this device still remains rather complicated due in particular to the positional adaptability of the auxiliary conveyer of wound bobbins and, consequently, economically disadvantageous for small plants and for those equipped with a low or even zero degree of automation.

US patent No. 4 723 885 describes a device for moving wound bobbins from an automatic spinning machine which contains a conveyer belt situated on the automatic spinning machine and used to assemble and convey the bobbins. Related to the conveyer belt is a receiving conveyer belt adapted for rotation in vertical direction and widened on each of its both sides by a roller transport section whose position can be situated either inclined or vertical in relation to the bobbin transfer plane. The device also contains a receiving trough mounted in parallel with the roller transport section to which there is related a transfer device for transferring bobbins from the roller transport section to the receiving trough coupled with a lifting device adapted to move 3 the receiving trough vertically between the positions at the roller receiving section and a plurality of other positions at the entry sections of over each other situated deposit surfaces of a distribution carriage related to the receiving trough. The receiving trough is also coupled with a tilting device intended to tilt the receiving trough about its longitudinal axis between the horizontal receiving position and a position turned through at least 9W for releasing the bobbins to permit them to get into the distribution carriage whose deposit surfaces consist of inclined flat members. In operation, a bobbin row is put on the receiving conveyer belt whereupon the bobbin transfer device moves so as to transfer the bobbins from the roller transporf section into the receiving trough. The lifting device then sets the receiving trough to the dumping position at the respective deposit surface of the carriage whereupon the bobbins are by the movement of the dumping device dumped on said dumping surface and roll there down to its end. In this way are filled ail the deposit planes of the distribution carriage which is then substituted by an empty one. Due to the great number of bobbins deposited in it, the distribution carriage is heavy and therefore difficult to handle.

In spite of some advantages, the chief drawback of the device consists in its complexity and large number of mutually moving components with all negative consequences resulting from it.

The goal of the invention is to create a simple and economically inexpensive device for reliable delivery of wound bobbins from a textile machine.

Principle of the Invention The goal of the invention is obtained by a device for delivering wound bobbins from a textile machine whose principle consists in that along both edges of the auxiliary conveyer there are on the auxiliary conveyer fixed deposit plates inclined in relation to their position on the auxiliary conveyer downwards and fitted at their extremities with gripping means.

The device based on this principle is simple in design and in operation, correspondingly inexpensive and less exacting in attendance and operation, 4 and easily applicable in small shops or in shops with a low or even zero degree of automation.

A horizontal bar for moving the rows of the wound bobbins, in a preferred embodiment parallel with the longitudinal axis of the auxiliary conveyer and adapted to reciprocate along a path intersecting the vertical longitudinal axis plane of the auxiliary conveyer, is mounted over the conveyer belt.

Preferably, the horizontal bar for moving the rows of the wound bobbins is adapted to reciprocate in horizontal plane.

In another preferred embodiment, the horizontal bar for moving the rows of wound bobbins is adapted to swing about an axis of swinging arranged in the vertical longitudinal axis plane of the auxiliary conveyer.

The axis of swinging of the horizontal bar for moving the rows of wound bobbins is preferably arranged under the conveyer belt of the auxiliary conveyer.

In another preferred embodiment, the axis of swinging of the horizontal bar for moving the rows of wound bobbins is arranged over the conveyer belt of the auxiliary conveyer.

This arrangement of the means for transferring wound bobbins away from the auxiliary conveyer is simple, highly reliable and imposes only reduced demands on the operation and maintenance.

Descfiption of the Drawing The device for delivering wound bobbins from a textile machine is schematically shown in the accompanying drawing in which Fig. 1 is the front view of the device for delivering wound bobbins from a textile machine and Fig. 2 is a plan view of the device.

Specific Description

The device will be described on an open-end spinning machine comprising on each side spinning units arranged side by side, with a delivery and winding device of the spun yarn situated over each spinning unit. Situated between these two rows of winding devices along the whole length of the openend spinning machine is a main conveyer for carrying away wound bobbins from the spinning unit of the open-end spinning machine to the machine end.

To the end of the main conveyer is related the beginning of a horizontal auxiliary conveyer 1 comprising a conveyer belt 10. The auxiliary conveyer 1 is coupled with well-known, not represent ed means for repeated formation of rows of wound bobbins 3 on its conveyer belt 10 as well as with means 2 for transferring the created row of wound bobbins 3 away from the conveyer belt 10 of the auxiliary conveyer 1. The auxiliary conveyer 1 is in one of well-known methods mounted on a support frame 5 ensuring its position in height and its required stability.

The conveyer belt 10 of the auxiliary conveyer 1 is coupled with a drive unit 11 made as one of well-known devices. The length of the conveyer belt 10 of the auxiliary conveyer 1 corresponds to the length of the required number of wound bobbins 3 arranged in a row one after another. In the shown example of embodiment, the auxiliary conveyer 1 has along the whole length of the conveyer belt raised side edges 12 protecting the wound bobbins 3 put on the conveyer belt 10 from unintentional failing out.

Related to the two side edges 12 of the auxiliary conveyer 1 at the level of its upper edge is one end of a deposit plate 4 mounted on the auxiliary conveyer 1, inclined downwards in the direction from the auxiliary conveyer 1 and fitted at its extremity turned away from the auxiliary conveyer 1 with a retaining means 40 of the row of wound bobbins 3 preventing them from failing outside the deposit plate 4. The length of the deposit plates 4 corresponds to the length of the conveyer belt 10 of the auxiliary conveyer 1 so that the whole row of the wound bobbins 3 situated one after another on the conveyer belt 10 of the auxiliary conveyer 1 is transferred at the same time by a single motion of the means 2 for transferring the row of the wound bobbins 3 from the conveyer belt 10 to its related deposit plate 4. The width of the deposit plate 4 6 corresponds to the sum of the widths of the maximum number of the rows of wound bobbins 3 which can be placed there and can be adapted to the specific requirement because it influences the frequency with which the wound bobbins 3 are put away from the deposit plate 4, for instance into pallets, or with which they are conveyed to further processing. In another not represented example of embodiment, the deposit plate 4 has the shape of a sinking convex or concave surface. In the example of embodiment shown in the drawing, each deposit plate 4 is adapted to receive four rows of wound bobbins 3 side by side. In another, not represented example of embodiment, the maximum number of wound bobbins 3 put side by side is a different one, chosen according to the specific requirements of the case and to the performance of the textile machine.

The means 2 for transferring the row of wound bobbins 3 from the conveyer belt 10 of the auxiliary conveyer 1 on the deposit plate 4 consists in the shown example of embodiment of a pair of transfer arms 20 coupled with their related drive and in one of the well-known ways rotatably mounted around their common axis lying in the vertical longitudinal axis plane of the conveyer belt 10 of the auxiliary conveyer 1. One transfer arm 20 is situated in front of the front edge of the conveyer belt 10 of the auxiliary conveyer 1 on the side of the device at the spinning machine, and the other transfer arm 20, behind the rear edge of the conveyer belt 10 of the auxiliary conveyer 1 on the side of the device turned away from the spinning machine, as shown in Fig. 2. The longitudinal axis of the two transfer arms 20 is non-parallel in relation to the axis around which the transfer arms 20 turn. In the shown example of embodiment, the longitudinal axis of each transfer arm 20 is perpendicular to their common axis of rotation. In the shown example of embodiment, the common axis of rotation of the transfer arms 20 is situated at a level above the upper surface 13 of the conveyer belt 10 of the auxiliary conveyer 1. In another not shown example of embodiment, the common axis of rotation of the transfer arms 20 is situated at a level below the upper surface 13 of the conveyer belt 10 of the auxiliary conveyer 1. At a level above the upper surface 13 of the 7 conveyer belt 10 of the auxiliary conveyer 1, free ends of the transfer arms 20 carry a transfer horizontal bar 21 of the row of wound bobbins 3, limiting the otherwise possible rotary motion of the transfer arms 20 to a reciprocating swinging motion around their common axis which is the functional motion of the transfer horizontal bar 21 of the row of wound bobbins 3 between the raised side ends 12 of the auxiliary conveyer 1. The motion path of the transfer horizontal bar 21 of the row of wound bobbins 3 between the two raised side edges 12 of the auxiliary conveyer 1 is shaped as a part of a circle, and the transfer horizontal bar 21 of the row of wound bobbins 3 is in each of its end positions situated in the area near the raised side edges 12 of the auxiliary conveyer 1 beside the row of the wound bobbins 3 set one after another on the conveyer belt 10. In another not shown example of embodiment, the means 2 for transferring the row of wound bobbins -3 from the conveyer belt 10 of the auxiliary conveyer 1 on the deposit plate 4 consists of another suitable device such as a shifting device with a rectilinear reciprocating work travel path of the transfer horizontal bar 21 which intersects the vertical longitudinal axial plane of the auxiliary conveyer 1 over the conveyer belt 10.

Both the conveyer belt 10 of the auxiliary conveyer 1 and the two deposit plates -4 are empty and the means -2 for transferring the row of wound bobbins -3 from the conveyer belt 10 of the auxiliary conveyer 1 on the deposit plate 4 is situated in one of its end positions. In the shown example of embodiment, the transfer horizontal bar 21 of the row of wound bobbins 3 is situated at one of the raised side edges 12 of the auxiliary conveyer 1. In one of the well-known ways, the wound bobbins 3 taken from the main conveyer of the spinning machine are one after another laid into a row. As soon as the required number of the wound bobbins 3 in a row is deposited on the conveyer belt 10 of the auxiliary conveyer 1, the motion of the transfer horizontal bar 21 from its one to its opposite end position, produced in the shown example of embodiment by the swinging motion of the transfer arms 20 from their one to their opposite end position, will bring the transfer horizontal bar 21 of the row of wound bobbins 3 into contact with each of the wound bobbins 3 making up the row deposited on 8 the conveyer belt 10 of the auxiliary conveyer 1. The further motion of the transfer horizontal bar 21 moves the whole row of wound bobbins 3 to the respective opposite raised side edge 12 of the auxiliary conveyer 1 and pushes it then over this raised side edge 12 until the whole row of wound bobbins 3 falls over the raised side edge 12 of the auxiliary conveyer 1 and spontaneously rolls down the deposit plate 4 to the end of the deposit plate 4 where it is braked by the retaining means 40. The means 2 for transferring the row of wound bobbins 3 from the conveyer belt 10 of the auxiliary conveyer 1 on the deposit plate 4 returns then to its initial position whereupon the wound bobbins 3 again resume, one after another, their places on the conveyer belt 10 of the auxiliary conveyer 1. As soon as the row of wound bobbins 3 on the conveyer belt 10 regains the due number of wound bobbins 3, the transfer horizontal bar 21 again moves as described above thus again transferring this row of wound bobbins 3 on the same deposit plate 4 as the preceding row of wound bobbins 3. This cycle is repeated until the respective deposit plate 4 is full which is signalled to the operator. During its last cycle in the course of which the respective deposit plate 4 has been filled to the full of its capacity with the wound bobbins 3, the means 2 for transferring the row of wound bobbins 3 from the conveyer belt 10 of the auxiliary conveyer 1 on the deposit plate 4 continues its motion to the opposite side of the auxiliary conveyer 1, stops there, and does not return. At this new initial position of the means 2 for transferring the row of wound bobbins 3, the wound bobbins 3 again arrive, one after another, at their places on the conveyer belt 10 of the auxiliary conveyer 1. As soon as the row of wound bobbins 3 on the conveyer belt 10 regains the due number of wound bobbins 3, the transfer horizontal bar 21 again moves as described above thus again transferring this row of wound bobbins 3 an the other, up to then empty, deposit plate 4. During this filling of said other deposit plate 4 with the row of wound bobbins 3, the operator takes the wound bobbins 3 from the first deposit plate 4. When the other deposit plate 4 is filled to the full of its capacity with the rows of wound bobbins 3, the means 2 for transferring the row of wound bobbins 3 from the conveyer belt 10 of the 9 auxiliary conveyer 1 on the deposit plate 4 again resumes its opposite initial position, i.e., the position described at the beginning of this description of the operation of the device for delivering wound bobbins 3 from a textile machine, and begins to put the rows of wound bobbins 3 on the respective, now empty, deposit plate 4. The whole cycle is repeated in rotation.

However, the device forming the object of the invention can operate also in other ways determined by the setting of the work regime.

In another embodiment, the transfer horizontal bar 21 can move the rows of wound bobbins 3 formed on the conveyer belt 10 of the auxiliary conveyer 1 alternately on the one and on the other deposit plate 4. This cycle is repeated until one of the deposit plates 4 has received the full number of the rows of wound bobbins 3. At that moment, a signal for emptying the deposit plates 4, to be carried out either manually or automatically by a suitable device, is given. The operator has sufficient time to empty the deposit plate 4 in question because the other deposit plate 4 still remains to be filled with one row of wound bobbins 3. The signal announcing the necessity to empty a deposit plate 4 indicates the terminal moment at which the emptying is absolutely necessary to be carried out to avoid the jamming of the device. The device can be fitted with a sensor monitoring the filling degree of the deposit plates 4 with the rows of wound bobbins 3, and the operation of the spinning machine can be modified if the risk of jamming becomes imminent. The operator can remove the wound bobbins 3 from the deposit plates 4 even if they are only partly filled and thus reduce the probability that the modification of the operation of the whole spinning machine, due to the jamming of the device caused by an instantaneous absence of the operator, will become necessary.

Claims

PATENT CLAIMS

1. A device for delivering wound bobbins from a textile machine comprising a main conveyer of wound bobbins to whose end there is related an auxiliary conveyer of wound bobbins arranged at a constant height and comprising a conveyer belt coupled with means for repeated formation of a row of wound bobbins and with means for transferring the created row of wound bobbins away from the conveyer belt of the auxiliary conveyer, characterized by that along both edges of the auxiliary conveyer (10") there are on the auxiliary conveyer (1) fixed deposit plates (4) inclined in relation to their position on the auxiliary conveyer (1) downwards and fitted at their extremities with gripping means (40).

2. A device as claimed in Claim 1, characterized by that a horizontal bar (21) parallel with the longitudinal axis of the auxiliary conveyer (1) and adapted to reciprocate along a path intersecting the vertical longitudinal axis plane of the auxiliary conveyer (1) and by means of this to move the row of the wound bobbins (3) is mounted over the conveyer belt.

3. A device as claimed in Claim 2, characterized by that the horizontal bar (21) adapted to move the row of the wound bobbins (3) is adapted to reciprocate in horizontal plane.

4. A device as claimed in Claim 2, characterized by that the horizontal bar (21) adapted to move the row of wound bobbins (3) is adapted to swing about an axis of swinging arranged in the vertical longitudinal axis plane of the auxiliary conveyer (1).

5. A device as claimed in Claim 4, characterized by that the axis of swinging of the horizontal bar (21) adapted to move the row of wound bobbins (3) is arranged under the conveyer belt (10) of the auxiliary conveyer

6. A device as claimed in Claim 4, characterized by that the axis of swinging of the horizontal bar (21) adapted to move the row of wound bobbins (3) is arranged over the conveyer belt (10) of the auxiliary conveyer (1).